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Stabilize const MaybeUninit::as_mut_ptr #130542

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Merged
merged 3 commits into from
Sep 19, 2024
Merged

Stabilize const MaybeUninit::as_mut_ptr #130542

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7477f3e
stabilize `const_maybe_uninit_as_mut_ptr`
ultrabear Sep 19, 2024
63f14b3
remove feature attributes as const_maybe_uninit_as_mut_ptr is stabilized
ultrabear Sep 19, 2024
b7ca2b6
run `x.py fmt`
ultrabear Sep 19, 2024
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1 change: 0 additions & 1 deletion library/alloc/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -110,7 +110,6 @@
#![feature(const_cow_is_borrowed)]
#![feature(const_eval_select)]
#![feature(const_heap)]
#![feature(const_maybe_uninit_as_mut_ptr)]
#![feature(const_maybe_uninit_write)]
#![feature(const_option)]
#![feature(const_pin)]
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1 change: 0 additions & 1 deletion library/core/src/lib.rs
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Expand Up @@ -131,7 +131,6 @@
#![feature(const_ipv4)]
#![feature(const_ipv6)]
#![feature(const_likely)]
#![feature(const_maybe_uninit_as_mut_ptr)]
#![feature(const_maybe_uninit_assume_init)]
#![feature(const_nonnull_new)]
#![feature(const_num_midpoint)]
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7 changes: 5 additions & 2 deletions library/core/src/mem/maybe_uninit.rs
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Expand Up @@ -393,7 +393,6 @@ impl<T> MaybeUninit<T> {
// These are OK to allow since we do not leak &mut to user-visible API
#[rustc_allow_const_fn_unstable(const_mut_refs)]
#[rustc_allow_const_fn_unstable(const_ptr_write)]
#[rustc_allow_const_fn_unstable(const_maybe_uninit_as_mut_ptr)]
#[rustc_const_stable(feature = "const_maybe_uninit_zeroed", since = "1.75.0")]
pub const fn zeroed() -> MaybeUninit<T> {
let mut u = MaybeUninit::<T>::uninit();
Expand Down Expand Up @@ -570,7 +569,11 @@ impl<T> MaybeUninit<T> {
/// (Notice that the rules around references to uninitialized data are not finalized yet, but
/// until they are, it is advisable to avoid them.)
#[stable(feature = "maybe_uninit", since = "1.36.0")]
#[rustc_const_unstable(feature = "const_maybe_uninit_as_mut_ptr", issue = "75251")]
#[rustc_const_stable(
feature = "const_maybe_uninit_as_mut_ptr",
since = "CURRENT_RUSTC_VERSION"
)]
#[cfg_attr(bootstrap, rustc_allow_const_fn_unstable(const_mut_refs))]
#[inline(always)]
pub const fn as_mut_ptr(&mut self) -> *mut T {
// `MaybeUninit` and `ManuallyDrop` are both `repr(transparent)` so we can cast the pointer.
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1 change: 0 additions & 1 deletion library/core/tests/lib.rs
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Expand Up @@ -26,7 +26,6 @@
#![feature(const_ipv4)]
#![feature(const_ipv6)]
#![feature(const_likely)]
#![feature(const_maybe_uninit_as_mut_ptr)]
#![feature(const_nonnull_new)]
#![feature(const_option)]
#![feature(const_option_ext)]
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